Snow-plow.



C.,A.' SPLAYFORD.

SNOW'PLOW. APPLICATION HLED JUNE 6.1911.

Patented 061;; 16,

2 SHEETSSHEET 1'.

I 7 l u o if A. SPLAYFORD 'SNOW PLOW.

APPLICATION FILED JUNE 6.1911.

Patented Oct. 16, 191 7 2 SHEETSSHEET 2.

vvzvyiilli INVENTOR :YpZay/b Snow-Flows, of which the following is a U TED STATES PATENT OFFICE.

streams A. SPLAYFOBD, OF'VANCOUVER, BRITISH COLUMBIA, CANADA.

snow-PLOW.

Toall whom it may concern:

Be it known thatI, CHAnLEs A, SPLAY- FORD, a citizen of the Dominion of Canada, residing at Vancouver, in the Province of British CoLumbia, Canada, have invented certain new and useful Improvements in specification.

This invention relates to a snow plow which has been particularly designed for mountain use where difficulty is experienced in dealing with the great variation in the depth of the snow. The ordinary rotary'snow plow, adapted to deal with deep drifts, has

a wheel of considerable diameter and although it reaches as close'as ,practicable to the 'rail level it is ineffective in dealing with snow of a less depth than four feet as it merely churns it up without throwing it clear of the track, and as a consequence these plows are frequently stalled in two or three feet of snow before they can reach the heavier drifts where their services are required and where they would be fully effective.

It is to enable a rotary plow to deal effectively with snow of any depth from a few inches over the rail, that the plow, which is the subject of this application, has been de- ViSBd'.

The essential features of it reside in the use-with a bladed wheel, of an incline from I adjacent the ,track level to a little below the axle of the bladed wheel by which the snow is thrown later :llv ofi, the track, up which incline a conveyer "travels drawn by the same engine which drives the rotary wheel.

'The invention is particularly described in the following specification, reference being made to the drawings by which it 1s accompanied, in. which:

Fig. 4 is a section on theline l l in Fig.

1, and a Fig. 5 is a transverse section of the wheel. Fig. 6 is an enlarged detail view of a portion of the invention.

In these drawings 2 represents the front end of a steel flat car on which the plow is mounted, of which car, 3 is the leading truck. The structure ofthe plow is built Specification of Letters Patent.

Application filed June 6,

1917. Serial No. 173,169. 1

onto this flat car and comprises side walls 4; of double steel plates spaced apart by chan nel irons except at the forward upper edge where the plates are riveted together. These side walls have a profile, as shown in Fig. .1, and are secured to the sides of the car 2 outside the truck wheels. They extend backward for about half the length of the car afid project in front of the leading end of the car in a wedge shape form, as shown, and have a gap on each side just behind the trailing wheels of the car truck 3 where the rotary wheel 17 delivers to either side as required.

0n the middle line between the twoside walls and secured likewise to the front end of the flat car is a mid-partition 5, the upper side of which partition conforms generally to the corresponding profile of the side Patented Oct. 16,1917.

disposed share 14 of the plow incline. The

underside of this share is provided with re-' newable slippers 15, which, when the plow is under load, as when cutting through heavy drift, support the front end by bearing upon the track rails. v

Secured between the sides walls 4 and the mid-partition 5 are the two inclined chutes 6'sloping upward from the share 14: to the front edge'of' the gap about half the radius of the rotary wheel below its driving shift,

and over each chute travel the anglev use,

cross bars 7 of aconveyer, the chains 8 of which are close along the inner side of each wall 4: andeach side of the mid-partition v5 and take over sprocket wheels secured 'on'a shaft 10 below the lower end of the chutes and on a shaft 11 below the upper endof the same, the upper shaft being driven by suitable gearing'from the engine 12 which drives the rotary wheel 17.

The conveyer chains 8 are protected from the pressure of the snow by angle irons 9 secured to the side walls and mid-partition and projecting over the chains. V

The front end of the shaft 13 on which the wheel 17 is s oured issupported in a bearing carried on the after end of themidpartition 5 and passes through a bulk head 18 which extends across the entire width of the fiat car between the side walls 4 and separates the plow proper from the space in which is the engine 12 by which the rotary is driven. The wheel is secured on th s shaft 13 close tothe bulk head 18 and a downwardly inclinedlapron 16 receives the snow asdelivered from the upper ends of side as'desired, through which thesnow delivered u i the inclined 'chutesby theconreyers may e thrown clear of tne track.

lVith this plow the smallest depth of snow over the tracks will be lit! ed by the share .14, conveyed up the-chutes (5 and laterally delivered by the apron 16 to the bladed wheel 17, the faces. of the blades of. which i are preferably normal to the plane of rotation, instead of, as is usual, inclined there- I to. This enal'ilcs the snow to be delivered tion with a suitable'vehicle, of a bladed.

from either side at will by reversing the engine. I

Having now particularly described m inventiom'l -hereby declare that what claim new and desire to be protected in by Letters Patent, is:

1. A snow plow, comprising the combinawheel rotatably mounted thereon to rotate in a plane normal to the track, an inclined chute leadinglupwardfrom share horizontally disposed across the traelcto', a position'in front of the bladed wheel and below its axis of rotation, a plow share at the botpi nvnitJRULE COP tom of the shoe, a conveyermoving'up the chute, and means for rotating the wheel and operating the conveyor.

2. A snow plow, comprising the combination with a suitable vehicle, of a bladed wheel rotatably mounted thereon to rotate in a plane normal to the track of the vehicle, an inclined chute leading: upward from a share horizontally disposed across the track to a position in front of the bladed wheel and below its axis of rotatiomsaid chute having walled sides a'nd'dirided vertically bya mid-partition, a conveycr movable up each divided half of the chute, the chains of which conveyor are adjacent the side walls and mid-partitimi, and guards protecting the upper side of the chains.

3. A. snow plow, comprising the combination with a suitable vehicle, of a bladed wheel rolatably mounted thereon to rotate in a plane normal to the track, a walled chute leading upward from a share horizon- -*tally disposed across the track to a position in trout of the bladed wheel and below its axis of rotation, an apron delivering from the upper end of the chute to 1he underside I of the bladed. wheel, said apron conformlng in the plane of thewheel to the general curvature of its circumfercnce but diverging therefrom toward each side, a hood concentric to the oircuml'erenoe of the wheel and movable concentric therewith that itanay bethrown to expose a deliveryaperture to either side between its lower edge; and the outer edge of the'apron.

In testimony whereof I ailix my signature.

CHARLES A. SPLAYFORD- 

